To get started with Gitify, it's easiest to set up a local clone of this repository. It doesn't matter in which folder clone it to. On Unix/Linux systems you can choose your home directory. After that, run Composer to download the dependencies, and finally make the Gitify file executable to run it.

At this point you should be able to type ./Gitify and get a response like the following:

Gitify version 0.2.0
Usage:
[options] command [arguments]
Options:
--help -h Display this help message.
--verbose -v|vv|vvv Increase the verbosity of messages: 1 for normal output, 2 for more verbose output and 3 for debug.
--version -V Display the Gitify version.
Available commands:
build Builds a MODX site from the files and configuration.
extract Extracts data from the MODX site, and stores it in human readable files for editing and committing to a VCS.
help Displays help for a command
init Generates the .gitify file to set up a new Gitify project. Optionally installs MODX as well.
list Lists commands
install
install:modx Downloads, configures and installs a fresh MODX installation.

If that's working as expected, the next step is to add the Gitify executable to your PATH so you can run Gitify in any directory. Edit your ~/.bash_profile and add the following, with the right path to the Gitify directory (not file) of course:

export PATH=/path/to/Gitify/:$PATH

Restart your terminal and you should be good to go.

For successfull installing of MODX by Gitify install:modx command you should have installed unzip command in your system. For Debian/Ubuntu you can use sudo apt-get install unzip.